Dozens of Air Force officers entrusted with maintaining U.S. nuclear missiles are now accused of cheating or turning a blind eye to cheating on a competency test .

And that 's just the tip of the iceberg .

The scandal involving 34 Air Force officers at Malmstrom Air Force base in Montana marks the latest trouble for U.S. nuclear forces plagued by problems over the past year .

Here 's a look at other recent cases :

October 2013

A U.S. general who oversaw nuclear weapons was relieved of his duties after he boozed , fraternized with `` hot women '' and disrespected his hosts during an official visit to Russia , Air Force officials said .

Maj. Gen. Michael Carey led the 20th Air Force responsible for three nuclear wings .

According to an Air Force Inspector General report , Carey bragged loudly about his position as commander of a nuclear force during layover in Switzerland , saying he `` saves the world from war every day . ''

While in Russia , Carey and an unidentified man walked to a nearby hotel to meet `` two foreign national women . '' He returned to his Marriott hotel room in the wee hours of the morning . As a result , Carey was 45 minutes late in joining a delegation in a Moscow suburb , according to the report . He attributed the tardiness to jet lag , and said his body clock was out of whack .

In addition , Carey announced he 'd `` met two hot women the night before , '' and continually interrupted a monastery guide during a tour , his speech slurred the entire time , the report said .

During dinner at a Mexican restaurant , he drank more alcohol and wanted to perform with the live band , which wanted no part of it , the report said . He later left his delegation and joined the two women he 'd met the night before at a different table .

There was no indication Carey 's behavior compromised sensitive nuclear information or went beyond drinking , dancing and fraternizing with the women , officials said .

CNN 's repeated attempts to reach Carey were unsuccessful .

October 2013

Days before Carey was relieved of his duties , another military officer with high-level responsibility for the country 's nuclear arsenal lost his job .

Vice Adm. Tim Giardina was formally relieved of his duties as deputy chief of U.S. Strategic Command , according to Rear Adm. John Kirby , the Navy 's chief of information .

Giardina oversaw nuclear weapons forces . A military official said his demotion was connected to allegations that he used counterfeit gambling chips at an Iowa casino .

He was demoted to rear admiral and transferred to a job in Washington .

August 2013

The same missile unit at Malmstrom linked to the test cheating scandal failed a safety and security inspection `` after making tactical-level errors -- not related to command and control of nuclear weapons , '' the Air Force Global Strike Command said .

The 341st Missile Wing operates about 150 of the 450 Minuteman III nuclear-tipped intercontinental ballistic missiles in the U.S. force , according to an Air Force statement .

A failed inspection does not mean that the safety of the nation 's nuclear arsenal is at risk , AFGSC Commander Lt. Gen. Jim Kowalski said in August .

`` These inspections are designed to be tough to pass , '' he said . `` Commanders use these inspections to continually improve our training and procedures . ''

April 2013

In an unprecedented move , an Air Force commander stripped 17 of his officers of their authority to control and launch nuclear missiles .

The officers , based in Minot , North Dakota , did poorly in an inspection . They were ordered to undergo 60 to 90 days of intensive refresher training on how to do their jobs .

Lt. Col. Jay Folds announced the action in an April e-mail to his unit .

`` Did you know that we , as an operations group , have fallen -- and its it time to stand ourselves back up ? '' Folds wrote .

Folds also told his troops to `` crush any rules violators . ''

`` We are , in fact , in a crisis right now , '' he wrote .

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34 nuclear Air Force officers are accused of cheating or not reporting cheating

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Last year , a general who oversaw nuclear weapons was relieved of his duties

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Air Force report : The general was intoxicated and acting inappropriately on an official trip to Russia

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Another nuclear officer lost his job after allegations he used counterfeit gambling chips at a casino